Fat free may sound healthy, but sometimes it's not the smartest pick. Here are a few culprits to watch out for — and what to eat instead.

2. Salad Dressing

Because fat helps absorb vitamins and nutrients, you won’t reap all the benefits of those leafy greens without a little bit of it, says Gans. The key is choosing a healthy source. Monounsaturated fat (olive oil, nuts), is good for you, while saturated fat (butter) is generally not, says Gans. The experts recommend oil and balsamic vinegar as the healthiest options for salad dressing.

A study from Purdue University even found that that dressings made with monounsaturated fats (like olive oil) are a bit faster at absorbing nutrients than those with saturated or polyunsaturated fat (like canola oil).

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